Treating Bed Bug Infests: Involves Maintenance Duties of Landlords and Co-operation Duties of Tenants | Askew Paralegal Services


Last Updated: August 22 2026

Question:In Ontario, what duties does a landlord and tenant have for bed bug infestations, and can a tenant recover costs or rent abatement?

Answer:In Ontario, a landlord must take reasonable and timely steps to exterminate bed bugs and keep the rental unit in a good state of repair, including under Residential Tenancies Act, 2006, S.O. 2006, c. 17, s. 20 (not an automatic obligation to guarantee “zero” bed bugs the moment they are reported)   A tenant also must cooperate, provide access to pest control, and properly prepare the unit for treatment, because failure can increase costs and may reduce what the tenant can recover   If the landlord does not respond properly, a tenant can apply to the Landlord Tenant Board using a T6 Application About Maintenance and may seek an Order, rent abatement, and compensation for damaged or discarded belongings, with the reasonableness of the landlord’s efforts assessed in context (see L.O. v. B.P., 2020 CanLII 61323)   If you need help preparing a Landlord Tenant Board application or responding to a bed bug cost claim, Askew Paralegal Services can assist in Ontario, call (289) 439-4740.

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Duties of a Landlord and a Tenant When Addressing Bed Bug Infestations

Frustratingly, bed bug infestations have increased significantly in recent years and dealing with a bed bug infestation may be a highly disruptive and costly process. Reasonably so, landlords often worry about the multiple treatments required to eradicate bed bugs and a landlord will often ask if the costs may be passed through to the tenants, especially where the landlord may believe the tenants are the source of the infestation.  However, as bed bugs are a concern relating to a maintenance issue, such is governed by section 20 of the Residential Tenancies Act, 2006, S.O. 2006, Chapter 17 which explicitly says:

Note: Please contact Askew Paralegal Services by phone at: (289) 439-4740 to discuss any specific questions that you may have.


20 (1) A landlord is responsible for providing and maintaining a residential complex, including the rental units in it, in a good state of repair and fit for habitation and for complying with health, safety, housing and maintenance standards.

Accordingly, it is the responsibility of a landlord to address a bed bug infestation.  If the landlord fails to do so, the tenant may be within rights to apply to the Landlord Tenant Board for an Order to deeming that the landlord failed to meet the statutory maintenance obligations.  The tenant may do this by filing a document known as a Tenant Application About Maintenance (Form T6) with the Landlord Tenant Board.  If the tenant is successful with the argument that the landlord failed to maintain the rental unit, or rental complex, by failing to take adequate measures to remedy a bed bug problem, the tenant may be entitled to a rent abatement and/or compensation for belongings which may have been discarded as a result of the failures by the landlord.  With this said, it is notable that the presence of bed bugs fails to make the landlord immediately responsible for losses or stresses to the tenant whereas the law requires a landlord to act reasonably, rather than perfectly, in maintaining the rental unit, or rental complex; and accordingly, a contextual review of the maintenance efforts of the landlord is required.  Simply said, the law is without a mandate that the landlord must insure against the presence of bed bugs.  Specifically, per the case of L.O. v. B.P., TET-10802-20 (Re), 2020 CanLII 61323 it is said:


18.  The Ontario Court of Appeal in Onyskiw v. CJM Property Management Ltd. (2016 ONCA 477) determined that landlord is not automatically in breach of their maintenance obligations as soon as a problem arises and a contextual approach is necessary in determining whether or not a landlord has breached their maintenance obligations under section 20 of the Act. That approach involves a consideration of the “entirety of the factual situation” before determining that a landlord is in breach of their maintenance obligations.

19.  The question is whether the Landlord took reasonable and timely steps to exterminate the bed bugs after the Landlord was informed of the presence of the bedbugs in the Tenant’s rental unit.

Although the landlord is duty bound by the statute and therefore is ultimately responsible to take prompt and proper steps for the treating of a bed bugs situation, the tenants are duty bound and required to co-operate and participate in the process to assist and ensure the timely, effective, and hopefully successful, efforts of the landlord.  Pest control companies provide detailed instructions outlining how to prepare the rental unit for treatment.  This will often include removing excess items from shelves, laundering all bedding and clothing, and moving furniture away from the walls.  If the tenant fails to adequately prepare the unit for treatment the landlord may incur additional costs due to unproductive or additional visits by the pest control company.  Where the tenant failed to co-operate and participate in the process, and thereby failed to adequately assist the landlord in the eradication process, the landlord may apply to the Landlord Tenant Board in an attempt to recover the additional costs caused by the tenant.  When attempting to recover the additional costs, it is the landlord who must prove that the tenant failed to co-operate and that the lack of co-operation caused, or contributed, to the increased costs incurred by the landlord.

Conclusion

Generally, the treatment of bed bugs falls within the maintenance responsibility of a landlord.  A tenant is required to act reasonably in assisting the landlord in the eradication of bed bugs by enabling access to exterminators, among other things.  If the tenant impairs eradication efforts, the tenant may be liable to the landlord for aggravating expenses incurred by the landlord.

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